National Association for Sport and Physical Education
Active Start: A Statement of Physical Activity Guidelines for Children From Birth to Age 5, 2nd edition
https://www.shapeamerica.org/standards/guidelines/activestart.aspx

National Association for Sport and Physical Education
Physical Activity for Children: A Statement of Guidelines for Children 5-12, 2nd edition
https://www.shapeamerica.org/advocacy/positionstatements/pa/

National Association for Sport and Physical Education
Position Statement: Physical Activity Used as Punishment and/or Behavior Management – an inappropriate practice
https://www.shapeamerica.org/advocacy/positionstatements/pa/upload/Using-Physical-Activity-as-Punishment-2009.pdf